Machine for trimming paper.



No. 632,434. Patented Sept. 5, I899. A. ALLEN.

MACHINE FOR TRIHIING PAPER.

(Application filed In. 15, 1899.)

3 Sheets-Sheet I,

(No Model.)

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No. 632,434. Patented Sept. 5, I899.

A. ALLEN. MACHINE FOR TBIMMING PAPER.

(Application filed Mar. 15, 1899.)

3 Sheets-Sheet 2.

(No Mod el.)

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No. 632,434. Patented Sept. 5, I899. A. ALLEN.

MACHINE FOR'TRIHMING PAPER (Application filed Mar; 15, 1899.) (NoModel.) 3 Sheets-S heet 3.

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1 UNITED STATES PATENT OFFICE.

AARON ALLEN, OF PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR TRIMMING PAPER.

SPECIFICATION forming part of Letters Patent No. 632,434, datedSeptember 5, 1899.

Application filed March 15, 1899.

To all whom it may concern:

Be it known that I, AARON ALLEN, a citizen of the United States,residing at the city of Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Machines for Cutting Borders and Trimming lVall-Paper, &c., of whichthe following is a specification.

My invention has relation to a machine for cutting borders and trimmingthe edges of wall and other paper, and in such connection it relates tothe construction and arrange ment of the elements or parts constitutingsuch a machine for the said purposes.

The principal objects of my invention are, first, to provide, in amachine for cutting borders and trimming wall-paper and the like, twoparallel shafts, on which are mounted the sleeves bearingthecomplemental cuttingblades,a yoke connectingsaid sleeves and theirrespective complemental cutting-blades, the lower blade being arrangedto slide freely and longitudinally upon its sleeve, a spring-cushiondevice mounted upon said lower sleeve and adapted to hold the cuttingedge of the lower cutting-blade against the cutting edge of the uppercutting-blade, and a set-screw or similar device for adjusting therequired degree of pressure of one blade against the other blade, and,second, to provide in such a machine, in conjunction with mechanismcarrying the roll of paper to be trimmed, means for shifting suchmechanism longitudinally with respect to the cutters and means forlooking such mechanism in its shifted position.

My invention, stated in general terms, consists of a machine for cuttingborders and trimming wall-paper and the like, constructed and arrangedin substantially the manner hereinafter described and claimed.

The nature and scope of myinvention will be more fully understood fromthe following description, taken in connection with the accompanyingdrawings, forming part hereof, in which- Figure 1 is a top or plan viewof the machine, embodying main features of my invention. Fig. 2 is across-sectional view, slightly enlarged, on the line w a: of Fig. 1.Fig. 3 is an enlarged detail view, partly in Serial No. 709,126. (Nomodel.)

longitudinal section, of the cutting-blades and auxiliary mechanism.Fig. 4 is a transverse sectional view on the line y 1 of Fig. 3. Fig. 5is a detail view, partly in front elevation and partly in section,showing the respective cutting-blades separated from the sleeves orbearings of the bracket or yoke upon which said blades are detachablymounted; and Fig. 6 is a cross-sectional view on the line 2 a of Fig. 1,showing the selvage-clearance device of the bracket or yoke and alsoshowing the trimmed portion of the paper guided in a downward directionby said device.

Referring to the drawings, a a represent the end frames or standardssuitably conneoted by the longitudinal tie-rods a a. The end frames or aform the bearin gs for the driving-shaft b, upon which one of thecuttingblades cl is mounted, and for the shaft d, parallel to the shaft6, upon which the other outting-blade d is mounted. The frames (L c alsoform bearings for the shaft e, upon which the trimmed paper is wound,and for a longitudinally-movable rod f, to which are secured thebrackets or yolces f, supporting the shaft f upon which the roll ofuntrimmed paper is supported. The frames a a also support a table g,over which the paper travels from the roll supported on the shaft f tothe circular cutting-blades (Z and (1 The shaft 1) is operated bya crankb or by a power pulley, if desired, and when operated sets in motion bymeans of the gears b and b the shaft CZ, and by means of the sprockets band b and a chain 1) sets in operation the shaft 6, upon which thetrimmed paper is wound. The shaft (1 is preferably provided with aflywheel b The shaft c upon which the trimmed paper is. wound has ajoint 6', so that its free end may be lifted out of the side frame atotake off the wound trimmed paper, and it is also provided with a clip orclamp e between which and the shaft 6 the end edge of the paper isinserted prior to its being wound around the shaft. I

So far as described the machine is constructed and arranged insubstantially the manner illustrated and describedcin the Letters PatentNo. 473,411 granted to me under date of April 19,1892. My presentinvention relates to certain improvements upon said machine of thecharacter hereinafter explained and claimed.

Referring now to Fig. 3, the circular blades (1 and d are complementallyarranged with their cutting edges facing each other. Each blade iscarried by a sleeve (1 one of which (for the upper blade) is adapted tobe clamped by a set-screw d or in any other preferred manner to itsrespective shaft. The lower blade d is held up to its work by means of adisk 10, from which project springs This disk 76 isprovided with aset-screw (Z for adjusting the tension of the lower blade or adjustingthe pressure of the same with respect to its bearing against the upperblade at the cutting edges thereof, thereby insuring good or reliableworking at all times of said blades in the operation of the machine byproviding means to compensate for any wear of the said blades abouttheir cutting edges. The sleeve of the blade d is held frictionally incontact with its shaft Z). During the operation of cutting the paper orother material introduced between the blades has a tendency to separatethe cutting edges, and the thrust thus created tends to bend or springthe supporting-shafts b and d. To overcome this thrust or strain is oneof the features of my present invention. To accomplish this there islocated adjacent to the cutting-blades abracket or yoke m, having ateither end a ball-bearing on or m for the sleeves of each blade d 0nd?This bracket or yoke thus serves as a brace for the two parallel shaftsb and d, and the ball-bearings m and m take up the thrust or strain onthe cutting-blades. From the yoke or bracket on projects, preferably, anintegral selvage-clearance device m to prevent the severed edge of' thewall-paper sheet coming in contact in the operation of the machine withthe paper being trimmed and rolled or, in fact, in any manner there-With.

Another important feature of my invention is that the respectivecutting-blades d and d may be readily slipped along their shafts on thesliding bearings or sleeves d and r and secured in required positionthereon by means of the set-screws d and (Z thereby adapting themachine, as fully illustrated in Fig. 1, to cutting through wall-paperborders, as illustrated in Fig. 5. It being understood that it is commonin the making of wall-paper borders to arrange the borders in series inone sheet, and after the selvage and opposite edge of the combinedborders have been severed by the operation of the machine in the manner,for example, as illustrated in Fig. 1 of the drawings, the said bladesare shifted in the manner illustrated in Fig. 5, so as to cut the borderinto strips for use. Of course it is to be understood that in the latterinstance the yoke or bracket m, with its end ball-bearings supported bythe shafts b and 6, will be shifted on their shafts b and 6 toward bothstandards a a of the machine.

The second feature of my present invention relates to the arrangement ofthe rod f, which supports the shaft) and fiangesf, on and between whichthe untrimmed paper is supported. In the trimming of successive rolls ofpaper it will be found that the edge to be removed will vary slightly inwidth from the figure or decorated portion of the roll in differentpapers. In order to easily adjust the position of the paper roll inrelation to the cutters, I provide in mypresent machine the rod f, madelongitudinally movable in the end frames a a. To this rod is secured ahandle f by means of which the said rod is shifted into suitableposition. On one end of the rod f is coiled a spring f normally tendingto shift the rod in one directionthat is, as illustrated in Fig. 1, fromleft to right. The opposite end of the rod f is threaded outside theframe a, as at f and provided with a nut f bearing against the outsideof said frame. If the roll-carrying shaft f is to be shifted from rightto left,the nut f is loosened on the rod f until the flanges f are inproper position, the spring f in this instance serving to retract andhold the rod f and the shaft f If the roll-carrying shaft f is to beshifted from left to right, the nut is made to revolve, thus carryingthe rod until the proper position is secured, as the pressure of thereciprocating spring tends to hold the device in the opposite direction.

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is-- 1. In amachine of the character described, two parallel shafts, twocomplementally-arranged cutting-disks, a sleeve carrying each disk andsupported upon the parallel shafts, a bracket interposed between theshafts, a sleeve formed at each end of saidbracket and surrounding eachshaft, the sleeves of the bracket and the sleeves of the disks beingcomplementally arranged so as to receive roller-bearings for thecutting-disks upon the sleeves of said bracket, substantially as and forthe purposes described.

2. In a machine of the character described, two end frames, a rodlongitudinally movable in said frames, a spring adapted to shift saidrod in one direction, flanges or brackets, and a shaft carried by saidbrackets and adapted to receive the roll of untrimmed material, andmeans, substantially as described, adapted to shift and lock the rod inits shifted position, substantially as and for the purposes described.

3. In a machine of the character described, two shafts, a bracket oryoke interposed between said shafts and forming part of movable bearingswith said shafts and a selvageclearance device projecting from saidbracket or yoke, substantially as and for the purposes described.

4. In a machine of the character described,

two shafts, two cutting-blades mounted on,

sleeves of said shafts, a bracket or yoke inbracket or yoke providedwith ball-bearings with said shafts, removable sleeves engaging saidbracket or yoke and cutting'blades detachably mounted on said sleeves,substantially as and for the purposes described.

In testimony whereof I have hereunto set my signature in the presence oftwo subscribing witnesses.

AARON ALLEN. Witnesses:

J. WALTER DOUGLASS, RICHARD O. MAXWELL.

